• scutiger@lemmy.world
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    7 days ago

    What if they slam into a truck at highway speeds? Instantly they’ve gone ftom 100km/h to 0, and you have to stop your car before you slam into them. How much space do you need between you in this scenario?

    With 2 seconds worth of space, you have about 55 meters between you, and a normal reaction time would be about 250ms, which leaves you 1.75 seconds and 48 meters to come to a complete stop. And hopefully the person behind you reacts accordingly and doesn’t slam into you as well.

    • LordKitsuna@lemmy.world
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      7 days ago

      This is the answer, and is exactly what happens when you see those accidents involving like 6 Plus cars. Too many people riding way too close together at high speeds and none of them were able to stop in time when the first car suddenly stopped